#!/bin/bash

# 此脚本需要在minio节点执行,包括检测minio进程状态、端口状态、等待中连接数、读取连接数、写入连接数

# 系统ID
system_id=$(cat config.cnf | grep SystemId | awk -F "=" '{print $2}')
# 告警存放文件夹
alert_dir=$(cat config.cnf | grep AlertDir | awk -F "=" '{print $2}')
# 告警缓存文件
alarm_file_tmp="minio_check_alarm.txt"
echo -n "" >${alarm_file_tmp}
# 本机ip
local_ip=$(ifconfig -a | grep inet | grep -v 127.0.0.1 | grep -v inet6 | awk '{print $2}' | tr -d "addr:")
# minio端口
minio_port=$(cat config.cnf | grep MinioPort | awk -F "=" '{print $2}')

execute_cycle=$(cat config.cnf | grep ExecuteCycle | awk -F "=" '{print $2}')

# minio进程状态监控
minio_pro_check() {
    minio_pro=$(ps -ef | grep "minio server" | grep -v grep | grep -v cmpminio | grep -v minio_check | wc -l)
	if [[ ${minio_pro} == 0 ]]; then
        # 进程状态不存在,告警
         ./gen_alarm.sh -g "应用进程监控" "minio服务状态异常,minio进程不存在,IP:$(hostname -I)" 3 "minio进程" "minio_pro" ${alarm_file_tmp}
    else
        # 告警存在,恢复原告警
        ./gen_alarm.sh -r "应用进程监控" "minio进程恢复正常,IP:$(hostname -I)" "minio进程" "minio_pro" ${alarm_file_tmp}

        # 端口检查
        minio_port_check
    fi
}

# minio运行端口监控
minio_port_check() {
	for port in $(echo ${minio_port} | sed "s/,/ /g"); do
		port_info=$(netstat -nplt | grep ":${port} ")
		if [[ ${port_info} == '' ]]; then
			# 端口未监听,告警
			./gen_alarm.sh -g "端口状态" "minio服务端口[${port}]未监听,IP:$(hostname -I)" 3 "minio端口状态" "minio_port" ${alarm_file_tmp}
		else
			# 端口正常且存在告警,需要恢复告警
			./gen_alarm.sh -r "端口状态" "minio服务端口[${port}]恢复正常,IP:$(hostname -I)" "minio端口状态" "minio_port" ${alarm_file_tmp}
		fi
	done
}

while true; do
    holidays_date=$(cat config.cnf | grep Holidays | awk -F "=" '{print $2}' | sed "s/,/ /g")
	current_date=$(date +'%Y-%m-%d')
	echo $holidays_date | grep -o $current_date >> /dev/null
	if [[ $? -eq 0 ]]; then
		exit 0
	else
		echo -n "" >${alarm_file_tmp}
		minio_pro_check
		# 将缓存告警放入告警文件夹
		./gen_alarm.sh -s ${alarm_file_tmp}
		sleep ${execute_cycle}
	fi
done
